Patents by Inventor Ralf Kohlhaas

Ralf Kohlhaas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250022365
    Abstract: A method for increasing safety at a crossing system including crosswalk.
    Type: Application
    Filed: June 28, 2024
    Publication date: January 16, 2025
    Inventors: Heiko Freienstein, Johannes Christian Mueller, Ralf Kohlhaas, Stefan Ruppin, Steffen Knoop
  • Publication number: 20240300530
    Abstract: A computer-implemented method and a corresponding system for planning the behavior of a vehicle using a predefined set of rules with prioritized rules for assessing possible behaviors of the vehicle in a given situation. For this purpose, situation-specific information is aggregated, and an environmental model of the given situation is generated based on the aggregated situation-specific information. The set of rules includes a decision-making process structure, which represents the prioritization of the individual rules of the set of rules. On the basis of the environmental mode, boundary conditions for the possible behaviors of the vehicle are determined. The latter are then prioritized by applying the decision-making process structure to the respective boundary conditions.
    Type: Application
    Filed: February 15, 2024
    Publication date: September 12, 2024
    Inventors: Johannes Christian Mueller, Anne Von Vietinghoff, Christian Heinzemann, Heiko Freienstein, Jens Oehlerking, Martin Butz, Martin Herrmann, Michael Rittel, Ralf Kohlhaas, Stefan Ruppin, Steffen Knoop
  • Publication number: 20240208539
    Abstract: A computer-implemented method for the behavior planning of an at least partially automated EGO vehicle. The method uses a database of pre-defined partial situations and an evaluation model for each partial situation, as well as a pre-defined rule set for evaluating possible behaviors of the EGO vehicle in a given situation. The EGO vehicle performs: aggregating situation-specific information; generating an environment model of the given situation based on the situation-specific information; analyzing the environment model to identify at least one partial situation in the database; generating at least one instance for each identified partial situation; analyzing all generated instances by using the evaluation model of the respectively underlying partial situation to determine boundary conditions for the possible behaviors of the EGO vehicle in the given situation; prioritizing the possible behaviors of the EGO vehicle based on the boundary conditions determined in this way in conjunction with the rule set.
    Type: Application
    Filed: December 6, 2023
    Publication date: June 27, 2024
    Inventors: Johannes Christian Mueller, Anne Von Vietinghoff, Christian Heinzemann, Heiko Freienstein, Jens Oehlerking, Martin Butz, Martin Herrmann, Michael Rittel, Ralf Kohlhaas, Stefan Ruppin, Steffen Knoop
  • Publication number: 20240208504
    Abstract: A method for behavior planning of a vehicle. The method includes: receiving data of an environment detection system and of a planned route of the vehicle; ascertaining a traffic scenario based on the data of the environment detection system and of the planned route; ascertaining at least one geometric behavior option based on the traffic scenario; ascertaining a behavior that can be performed by the vehicle, taking into account the at least one behavior option.
    Type: Application
    Filed: December 5, 2023
    Publication date: June 27, 2024
    Inventors: Stefan Ruppin, Ralf Kohlhaas, Thomas Schamm
  • Publication number: 20210403044
    Abstract: A method for generating an actuation signal for a driver assistance system and/or a system for the at least partially automated control of a vehicle. In the method, suggestions are made available for trajectories to be traveled by the vehicle and/or for other actions to be triggered that affect the driving dynamics of the vehicle. The suggestions are evaluated by a cost function, this cost function including a weighted sum of multiple cost terms, the weights being dynamically adapted. Utilizing the evaluations ascertained using the cost function, at least one trajectory or action is selected from among the suggestions. At least one actuation signal is generated that when conveyed to the driver assistance system or the system for the at least partially automatic control of the vehicle, induces the respective system to travel the selected trajectory with the vehicle or to trigger the suggested action.
    Type: Application
    Filed: June 21, 2021
    Publication date: December 30, 2021
    Inventors: Jochen Wieland, Ralf Kohlhaas, Stefan Ruppin, Steffen Waeldele
  • Patent number: 10041835
    Abstract: Coherent spectroscopic methods are described, to measure the total phase difference during an extended interrogation interval between the signal delivered by a local oscillator (10) and that given by a quantum system (QS).
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: August 7, 2018
    Assignees: Centre National De La Recherche Scientifique—CNRS, Institut D'Optique Graduate School, Observatoire De Paris
    Inventors: Andrea Bertoldi, Ralf Kohlhaas, Arnaud Landragin, Philippe Luc Bouyer
  • Publication number: 20170356803
    Abstract: Coherent spectroscopic methods are described, to measure the total phase difference during an extended interrogation interval between the signal delivered by a local oscillator (10) and that given by a quantum system (QS).
    Type: Application
    Filed: December 18, 2015
    Publication date: December 14, 2017
    Applicants: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE - CNR S, Institut d'Optique Graduate School, Observatoire de Paris
    Inventors: Andrea Bertoldi, Ralf Kohlhaas, Arnaud Landragin, Philippe Luc Bouyer